Various early modern philosophers affirm the traditional distinction between ‘things above reason’ and ‘things contrary to reason.’ However, it is Robert Boyle who goes furthest to rework and defend the division, and to explore its ramifications in detail. My aim here is to examine the logical structure of Boyle’s version of the distinction, and his concomitant account of the sphere of truths beyond human understanding. I also weigh the philosophical merits of the account and clarify the relationship between Boyle’s characterization of things above reason and his alleged dialethism.